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Chao Wu

29 accepted papers

2026

Editing as Unlearning: Are Knowledge Editing Methods Strong Baselines for Large Language Model Unlearning?

AAAI 2026technical

Large language Model (LLM) unlearning, i.e., selectively removing information from LLMs, is vital for responsible model deployment. Differently, LLM knowledge editing aims to modify LLM knowledge instead of removing it. Though editing and unlearning seem to be two distinct tasks, we find there is a

Cited by 0SourcePDFScholar
2026

GuidedVLA: Specifying Task-Relevant Factors via Plug-and-Play Action Attention Specialization

RSS 2026poster

Vision-Language-Action (VLA) models aim for general robot learning by aligning action as a modality within powerful Vision-Language Models (VLM). Existing VLAs rely on end-to-end supervision to implicitly enable the action decoding process to learn task-relevant features. However, without explicit g…

Cited by 0SourceScholar
2026

Where Culture Fades: Revealing the Cultural Gap in Text-to-Image Generation

CVPR 2026

Multilingual text-to-image (T2I) models have advanced rapidly in terms of visual realism and semantic alignment, and are now widely utilised. Yet outputs vary across cultural contexts: because language carries cultural connotations, images synthesized from multilingual prompts should preserve cross-

Cited by 0SourceScholar
2025

Dynamic Neural Fortresses: An Adaptive Shield for Model Extraction Defense

ICLR 2025poster

Model extraction aims to acquire a pre-trained black-box model concealed behind a black-box API. Existing defense strategies against model extraction primarily concentrate on preventing the unauthorized extraction of API functionality. However, two significant challenges still need to be solved: (i…

Cited by 0SourcePDFScholar
2025

Leveraging Pretrained Diffusion Models for Zero-Shot Part Assembly

IJCAI 2025

3D part assembly aims to understand part relationships and predict their 6-DoF poses to construct realistic 3D shapes, addressing the growing demand for autonomous assembly, which is crucial for robots. Existing methods mainly estimate the transformation of each part by training neural networks unde

2025

REMEDY: Recipe Merging Dynamics in Large Vision-Language Models

ICLR 2025poster

Model merging has emerged as a powerful technique for combining task-specific vision models into a unified and multi-functional model. Previous methods represented by task arithmetic, have demonstrated effectiveness and scalability in this domain. When large vision-language models (LVLMs) arise with…

Cited by 3SourcePDFScholar
2025

Rewrite to Jailbreak: Discover Learnable and Transferable Implicit Harmfulness Instruction

ACL 2025finding

As Large Language Models (LLMs) are widely applied in various domains, the safety of LLMs is increasingly attracting attention to avoid their powerful capabilities being misused. Existing jailbreak methods create a forced instruction-following scenario, or search adversarial prompts with prefix or s…

2025

You Are Your Own Best Teacher: Achieving Centralized-level Performance in Federated Learning under Heterogeneous and Long-tailed Data

ICCV 2025poster

Data heterogeneity, stemming from local non-IID data and global long-tailed distributions, is a major challenge in federated learning (FL), leading to significant performance gaps compared to centralized learning. Previous research found that poor representations and biased classifiers are the main…

2024

Agile-Quant: Activation-Guided Quantization for Faster Inference of LLMs on the Edge

AAAI 2024technical

Large Language Models (LLMs) stand out for their impressive performance in intricate language modeling tasks. However, their demanding computational and memory needs pose obstacles for broad use on edge devices. Quantization is then introduced to boost LLMs' on-device efficiency. Recent works show t…

2024

Distributionally Generative Augmentation for Fair Facial Attribute Classification

CVPR 2024poster

Facial Attribute Classification (FAC) holds substantial promise in widespread applications. However FAC models trained by traditional methodologies can be unfair by exhibiting accuracy inconsistencies across varied data subpopulations. This unfairness is largely attributed to bias in data where some…

2024

Model Tailor: Mitigating Catastrophic Forgetting in Multi-modal Large Language Models

ICML 2024poster

Catastrophic forgetting emerges as a critical challenge when fine-tuning multi-modal large language models (MLLMs), where improving performance on unseen tasks often leads to a significant performance drop on the original tasks. This paper presents a comprehensive analysis of catastrophic forgetting…

Cited by 33SourcePDFScholar
2024

More Than Catastrophic Forgetting: Integrating General Capabilities For Domain-Specific LLMs

EMNLP 2024main

The performance on general tasks decreases after Large Language Models (LLMs) are fine-tuned on domain-specific tasks, the phenomenon is known as Catastrophic Forgetting (CF). However, this paper presents a further challenge for real application of domain-specific LLMs beyond CF, called General Capa…

2024

Scalable Geometric Fracture Assembly via Co-creation Space among Assemblers

AAAI 2024technical

Geometric fracture assembly presents a challenging practical task in archaeology and 3D computer vision. Previous methods have focused solely on assembling fragments based on semantic information, which has limited the quantity of objects that can be effectively assembled. Therefore, there is a need…

2024

Search for Efficient Large Language Models

NeurIPS 2024poster

Large Language Models (LLMs) have long held sway in the realms of artificial intelligence research. Numerous efficient techniques, including weight pruning, quantization, and distillation, have been embraced to compress LLMs, targeting memory reduction and inference acceleration, which underscore th…

2024

Waxing-and-Waning: a Generic Similarity-based Framework for Efficient Self-Supervised Learning

ICLR 2024poster

Deep Neural Networks (DNNs), essential for diverse applications such as visual recognition and eldercare, often require a large amount of labeled data for training, making widespread deployment of DNNs a challenging task. Self-supervised learning (SSL) emerges as a promising approach, which leverage…

Cited by 5SourcePDFScholar
2023

Delving into the Adversarial Robustness of Federated Learning

AAAI 2023technical

In Federated Learning (FL), models are as fragile as centrally trained models against adversarial examples. However, the adversarial robustness of federated learning remains largely unexplored. This paper casts light on the challenge of adversarial robustness of federated learning. To facilitate a b…

Cited by 38SourcePDFScholar
2023

Fairness-aware Contrastive Learning with Partially Annotated Sensitive Attributes

ICLR 2023poster

Learning high-quality representation is important and essential for visual recognition. Unfortunately, traditional representation learning suffers from fairness issues since the model may learn information of sensitive attributes. Recently, a series of studies have been proposed to improve fairness…

Cited by 35SourcePDFScholar
2023

No Fear of Classifier Biases: Neural Collapse Inspired Federated Learning with Synthetic and Fixed Classifier

ICCV 2023poster

Data heterogeneity is an inherent challenge that hinders the performance of federated learning (FL). Recent studies have identified the biased classifiers of local models as the key bottleneck. Previous attempts have used classifier calibration after FL training, but this approach falls short in imp…

Cited by 78PDFcodeScholar
2023

PackQViT: Faster Sub-8-bit Vision Transformers via Full and Packed Quantization on the Mobile

NeurIPS 2023poster

While Vision Transformers (ViTs) have undoubtedly made impressive strides in computer vision (CV), their intricate network structures necessitate substantial computation and memory resources. A decision-making process for CV tasks typically entails performing computations with low latency, which is…

Cited by 21SourcePDFScholar
2023

Revisiting Weighted Aggregation in Federated Learning with Neural Networks

ICML 2023poster

In federated learning (FL), weighted aggregation of local models is conducted to generate a global model, and the aggregation weights are normalized (the sum of weights is 1) and proportional to the local data sizes. In this paper, we revisit the weighted aggregation process and gain new insights in…

2023

Universal Domain Adaptation via Compressive Attention Matching

ICCV 2023poster

Universal domain adaptation (UniDA) aims to transfer knowledge from the source domain to the target domain without any prior knowledge about the label set. The challenge lies in how to determine whether the target samples belong to common categories. The mainstream methods make judgments based on th…

Cited by 28PDFScholar
2022

Camera-Conditioned Stable Feature Generation for Isolated Camera Supervised Person Re-IDentification

CVPR 2022poster

To learn camera-view invariant features for person Re-IDentification (Re-ID), the cross-camera image pairs of each person play an important role. However, such cross-view training samples could be unavailable under the ISolated Camera Supervised (ISCS) setting, e.g., a surveillance system deployed a…

Cited by 31PDFcodeScholar
2022

DENSE: Data-Free One-Shot Federated Learning

NeurIPS 2022accept

One-shot Federated Learning (FL) has recently emerged as a promising approach, which allows the central server to learn a model in a single communication round. Despite the low communication cost, existing one-shot FL methods are mostly impractical or face inherent limitations, \eg a public dataset…

2022

Prior-Bert and Multi-Task Learning for Target-Aspect-Sentiment Joint Detection

ICASSP 2022accepted

Aspect-Based Sentiment Analysis (ABSA) is a fine-grained sentiment analysis task and has become a significant task with real-world scenario value. The challenge of this task is how to generate an effective text representation and construct an end-to-end model that can simultaneously detect (target,…

Cited by 0SourceScholar
2021

KD3A: Unsupervised Multi-Source Decentralized Domain Adaptation via Knowledge Distillation

ICML 2021spotlight

Conventional unsupervised multi-source domain adaptation (UMDA) methods assume all source domains can be accessed directly. However, this assumption neglects the privacy-preserving policy, where all the data and computations must be kept decentralized. There exist three challenges in this scenario:…